4. Telephonic communications
  5. Centralized switching system
  6. With generating of call associated substation signal

David M. Straitiff

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Method and apparatus for selectively generating control signals

Telephonic communications – Centralized switching system – With generating of call associated substation signal
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System and method for location specific computer enabled...

Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1885131

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